Start on register overlay + pull in overlay styles + converted api.util to use bootstrap modal
Merge branch 'newframework' into register

Conflicts:
	shared/oae/css/oae.skin.css
Implemented register overlay
Clean up some i18n strings
Removed the old register page
Removed unused API functions
Removed unused translation strings
Fixed i18n issues
Merge branch 'newframework' into register

Conflicts:
	shared/oae/css/oae.base.css
Followed up on code review
Removed unused images
Merge pull request #2615 from nicolaasmatthijs/register

Register modal